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f20e2b6d1e
* lib/color: Refactor `color.rb`, add more colors * Update color.rb * Fix color detection * Update crew * Remove trailing space * Make rubocop happy * Bump version
61 lines
1.5 KiB
Ruby
61 lines
1.5 KiB
Ruby
# Colorization for strings
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class String
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@@use_color = $stdout.isatty
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# ANSI color codes
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@@color_codes = {
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black: 30,
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red: 31,
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green: 32,
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orange: 33,
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blue: 34,
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purple: 35,
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cyan: 36,
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lightgray: 37,
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# colors with bold varient available
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gray: { normal: 90, bold: 30 },
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lightred: { normal: 91, bold: 31 },
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lightgreen: { normal: 92, bold: 32 },
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yellow: { normal: 93, bold: 33 },
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lightblue: { normal: 94, bold: 34 },
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lightpurple: { normal: 95, bold: 35 },
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lightcyan: { normal: 96, bold: 36 },
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white: { normal: 97, bold: 37 }
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}
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class << self
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# create a getter/setter method for @@use_color
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# like attr_accessor, but attr_accessor works on instance variables only
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def use_color=(use_color)
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@@use_color = use_color
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end
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def use_color
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return @@use_color
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end
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end
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def colorize(color_code, shade)
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return @@use_color ? "\e[#{shade};#{color_code}m#{self}\e[0m" : self
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end
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# create method for each color
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@@color_codes.each_pair do |name, code|
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define_method(name) do |*opts|
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bold_avail = code.is_a?(Hash)
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if bold_avail
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# use bold varient by default (if available),
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# specify :no_bold to use normal varient
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use_bold = !opts.include?(:no_bold)
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color_code = code[use_bold ? :bold : :normal]
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else
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use_bold = false
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color_code = code
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end
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return colorize(color_code, use_bold ? 1 : 0)
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end
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end
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end |